Networking Devices in Telugu

Hey,Guys here we are going to discuss networking devices

Network Basics: 

a network is used to connects devices such as mobile phones,computers,peripherals....etc to establish the connection we need network devices such as switches,routers,and wireless access points.
Uni-cast: One to one communication Ex: Walkie talkie
Multicast: One to many communication Ex: Mobile
Broadcast: One to all or anyone communication Ex:TV Communication




Switches: 

switch is fundamental network device,this is used communicate each other in the network such as printers,servers,and computers.switches are intelligent device it can store MAC address & Cam tables.

Benefits:

✔Communication:we can establish network connection for all devices.
✔File sharing : we can share resources in the local network free of cost.
✔Full duplex:Two way communication at the time.
✔Uni-cast:one to one communication

Basically,Switches are divided into two types are 1.Unmanageable & 2.Manageable

Unmanageable switch: 

an unmanageable switches are unable to configure but low of cost,so most of small organisations prepares it.

Manageable switch: 

an manageable switches can be configured means we can configure remote access,port blocking,URL blocking...etc

Routers:

Routers connect multiple networks together means private(LAN) and public(WAN) networks,Router works as per  routing protocols & it select shortest path in the communication.

Routing protocols : 


✅ RIP-(Routing Information Protocols)
✅ IGRP-(Interior Gateway Protocol)
✅ BGP-(Border Gateway Protocol)
✅ IS-IS-(Intermediate System-to-intermediate System)
✅ OSPF-(Open Shortest path First)

✅ EGP-(Exterior Gateway Protocol)

✅ EIGRP-(Enhanced Interior Gateway Routing Protocol)

Modems:

Basically, Modems are used for Modulation & Demodulation it means
Modulation:Convert analog signal to digital signal
Demodulation: Convert digital signal to analog signal

Repeaters: 

It is used for increase the strength of signals

NIC:

NIC stands for Network Interface Card,it is the primary device in the network

Every networking device works on TCP/IP Layers. TCP stands for transition control protocol
it defines how devices exchange data over the internet.
In the TCP/IP there are four model layers are there

TCP/IP Model Layers:

Actually,TCP/IP works one below four layers,TCP/IPv4 has 32 bit,
Each layer works on specific protocols.

Application Layer:In this layer applications exchange data each other as per using protocol,Its have TELNET, HTTP, FTP, POP3, SMTP, protocols  

Transport Layer:It provides error-free communication between end systems,it divide into into segments and it controls the flow of data.

Internet Layer:It is responsible for delivering packets between sources and destinations, Know a days IPv4 mostly using why because IPv6 new technology but not suitable for some devices.Example: IP(internet protocol),ICMP(Internet Control Message Protocol),ARP(Address resolution Protocol)

Network Layer:Network layer is the combination of new layers there are Data link layer and Physical layer

Protocol:It has set of rules and regulations.

TELNET: It is a 2 way communication protocol,which allows remote access and run application on it.

FTP: It stands for file transfer protocol,it has 21 port number, it is used to transmit files over network

SMTP: It stands for simple mail transfer protocol, it has 465 for TLS & If you're using SSL 587, It is out going protocol.

ARP: It stands for address resolution protocol,used for identify the mac address through IP.

RARP: It stands for reverse address resolution protocol,used for identify the mac MAC address through MAC.

ICMP: It Stands for Internet Control Message Protocol,used to check error reporting in the network
Ping is the best example for ICMP








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